Car cannot start - inverter cable?

fellow Prius owners,

I have a 2014 Prius V 5. I changed the inverter pump and in order to do so, I removed the inverter. There were no major problems while trying to remove it (as far as I can tell, nothing broken, no major struggle with anything, etc.) After replacing the pump, I noticed the cable does not "lock" anymore - it comes off rather easily with a slight tug. Furthermore, the car can no longer start. I'm not sure if the two are related or not. Does everyone has any idea? I've enclosed a few pictures of the connector (both male and female ends).

I thought it might be the battery, but I've charged it up to 100%. I also made sure the HV lock is firmly and correctly in place. I also verified all the battery connections are secured.

Thanks!

 

I looked at it again and the orange seal looks where it is supposed to be. I've enclosed a few pictures of different angles. Can you see anything? It just doesn't lock into place and the car cannot start. Are they related?

 

The orange seal is all the way down (you can see it from the pictures). I don't know if it can be pushed down any further.

 

Can you explain what do you mean by "down-hole"?

 

The orange seal is like a rubber band right? It already wraps around the connector. I made sure it was more or less aligned around the entire connector in equal distance. I am not sure why Toyota made it so hard to reattach this connector.